Singer 4411A566A, 4412A566A Instruction Book

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SINGER®

4411A/566A 4412A/566A

INSTRUCTION BOOK

SINGER (SHANGHAI) SEWING MACHINE CO, LTD.

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SINGER

4411A/566A	1-NEEDLE , UNISON FEED, LOCKSTITCH MACHINE WITH AUTOMATIC THREAD TRIMMER
4412A/566A	2-NEEDLE . UNISON FEED. LOCKSTITCH MACHINE WITH AUTOMATIC THREAD TRIMMER

Please read this Instruction Manual carefully before using the unit in order to get the most out of it and to enjoy using it for a long time. Please keep this Instruction Manual at hand taking care not to lose it.

INSTRUCTION MANUAL

BEFORE OPERATION

1. Do not operate the machine even for trial before lubrication it.
2 Confirm that the voltage and phase (single or 3-phase) are correct by checking them ag -ainst the ratings showen on the motor nameplate.
3 When running your machine for the first time after the set-up, check the rotational direction of the handwheel. ★ Turn on the power switch. Run the machine at a low spe -ed while checking the rotational direction of the handwheel. (The handwheel should turn counterclockwise as observed from the handwheel side.)
4 For the first month, run the machine at speed of 1600s, p.m. or less.

CAUTIONS IN OPERATION

1. Keep your hands away from the needle when you turn on the power switch or while the machine is operating.
2 During operation, be careful not to allow your or any other person's head or finger -s to come close the handwheel, V-belt, bobbin winder or motor. Also, do not place a -nything close to them.
3 Do not turn the machine with the finger guard, beltcover or any other protectors remo -ved.
4 Be sure to turn off the power switch and confirm that the motor is completely stopped before removing the V-belt.


Spec	Model	4411A/566	5A 4412A/566A
Application		Heavy material
Sewing speed Max)		2000 (spm)
Stitch length		0~9 (mm)
Needle bar stroke		3,6 (mm)
Presser foot stroke	Knee lifter	16 (mm)
Presser foot stroke	Hand lifter	8 (mm)
Needle			DP×17 #23
Lubricating oil		Machine oi	l (white spindle oil

SPECIFICATIONS

1. MOUNTING POSITION OF THE KNEE LIFTER

1) Insert knee lifter crank ① in the knee lifter shaft
2) Attach knee lifter plate rod asm. (3) to the knee lif -ter crank (1).

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2. LUBRICATION (1)

3. LUBRICATION (2)

Fill the oil reservoir with oil up to "H"m -ark. Oil level should be periodically che -cked. If oil level is found below "L" level, repl

If oil level is found below "L'level, repl -enish oil to "H" level. Using oil is white spindle oil.

Before starting the machine.

1) Prior to operation, be sure to properly lubricate the points marked with the arrows.

When oiling all sections requirring lubrication, after installation of the machine has been completed, wait for a while (approximately 10 minutes) so that oil can penetrate each section sufficiently before starting continuous operation.

When starting the machine initially and after kept away for a long time without using at all, apply two or three drops of oil each section noted with an arrow mark, and to operate the machine continuosly, apply two or three drops of oil each section whenever starting operation in the morning and in the afternoon.

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4. OILING CONDITION

1) See dripping of oil during operation through the oil sight window to check oiling condition in the machine arm.

5. REFUELING ADJUSTMENT OF THE HOOK

CAUTION THE SWITCH OFF THE POWER SUPPLY TO PREVENT FROM UNE -XPECTED INJURY. BE SURE TO CONFIRM THE STOP OF ROTATION OF THE MOTOR BEFORE OPERATIONS.

Increase

Decrease

If it is necessary to change the amount of oil supplied to the hook, adjust it using k -nob ①.

O Turn the knob clockwise (in direction "+") to increase the oil supplied, or tur -n it counterclockwise (in direction "-") to decrease it.

Attension:

After adjusting the knob and noload ru -nning more than 30 seconds, confirm oil which scatters from the hook.

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8. THREADING THE MACHINE HEAD

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9. ADJUSTMENT OF STITCH LENGTH AND STITCH REVERSING (TOUCH-BACK)

O Stitch length setting dial Turn the dial (1)

O Reed reverse lever How to operate

- 1) Push feed reverse lever down. 2) The machine performs reverse feed s
- -titching as long as the lever is h -eld depressed
- B) The moment you release to lever, th -e machine resumes the normal stitc -hing mode .

O Touch-back button

How to operate
- 1) The moment you press touch-back but -ton, the sewing machine performs r -everse feed stitching.
- 7) The machine continues reverse feed stitching as long as the touch-back button is held pressed.
- R) When you release the switch, the ma -chine resumes normal stitching

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11. THREAD TENSION

12. THREAD TAKE-UP SPRING

Tension adjusting

♦ Adjusting the thread take-up spring stroke

Loosen setscrew ②, and turn the adjusting plate ①. Turn the adjusting plate ① to the right (counterclockwise), increase its moving range. Turn the adjusting plate ① to the left decrease its moving range.

Adjusting the thread take-up spring tension

1 Loosen setscrew (3), and turn the tension stud @ over toward left to increase tension
2. Turn it to the right decrease tension.
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13. LIFTING THE PRESSER FOOT

1) Turn the hand lifter () toward (), presser foot lifts 8 mm.
2) Using the knee lever, presser foot lifts 16 mm.

14. ADJUSTING THE PRESSER FOOT PRESSURE

1) Turn the presser spring regulator to the right to increase and to the left to dec -rease pressure.

15. NEEDLE TO HOOK RELATIONSHIP

05mm

•The upper edge of needle eye should be 2 3 mm below the hook point.

•The hook point should be located at th -e center of needle axis.

-e center of needle axis. •Gap between the hook point and the sid -e face of needle should be 0.05 mm.

(3) Needle rotating hook position can be a -djusted as follows.

(For easy adjustment, it is recommend -ed that the presser foot, throat pla -te and feed dog assemblies are remov -ed.)

Hook point

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O Position adjustment of hook point (1) Approximate position of hook "A"screw of hook should be found c -lose to the needle when the needl -e is at "DOWN" position.
- (2) To finely adjust timing between th -e needle motion and hook motion, loosen the set screw of large gear wheel and move the gear wheel in i -ts axial direction within a range from 1 mm to 2 mm.
- Note: In the adjustment, do not exce -ssively loosen set screws B and always maintain meshing of hook shaft gear and lower shaf -t gear

16. ADJUSTMENT OF FEED DOG HEIGHT

CAUTION TURN THE SWITCH OFF THE POWER SUPPLY TO PREVENT FROM UNE -XPECTED INJURY. BE SURE TO CONFIRM THE STOP OF ROTATION OF THE MOTOR BEFORE OPERATIONS.

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Height of feed dog and pressure of presser foot should be adjusted for individual fabr -ic with the following cautions.

Material will be damaged if the feed dog extends too high, or pressure of presser foot is too large. Even stitch length cannot be assured if
Even stitch length cannot be assured if the feed dog is too low or pressure of presser foot is too small. Feed dog height should be measured at th
Feed dog height should be measured at th -e point where the needle is at the top position.

·For	light	materials	··· Approx . (). 8mm	n from
.For	usual	materials	throat plate Approx . 1. Omm	1 from
For	heavy	materials	throat plate	from
1.01	ncavy	materiars	throat plate

O Adjustment procedure

(1) Lean the machine head backward. (2) Turn the handwheel by hand and stop when the feed dog rises to the maximum height.
(3) Loosen the feed bar set screw
(4) Vertically move the feed bar (in the direction indicated by arrow in the fi -gure) to adjust it to adequate height.
(5) After the adjustment, tighten the fe -ed bar set screw.

The feed dog height is factory-adjust -ed to (A) mm shown table .

	Model	A (mm)
	4411A/566A	1. 2
	4412A/566A	1. 0

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17. RELATIONSHIP BETWEEN ROTATING HOOK MOTION AND TAKE-UP LEVER MOTION

CAUTION TURN THE SWITCH OFF THE POWER SUPPLY TO PREVENT FROM UNE -XPECTED INJURY. BE SURE TO CONFIRM THE STOP OF ROTATION OF THE MOTOR BEFORE OPERATIONS.

When the timing belt was removed for its replacement, for example, the rel -ationship between rotating hook moti -on and take-up lever motion should b -e adjusted as follows :

(1) Turn the handwheel and stop when the take-up lever is lifted to i -ts top position.
(2) Lean the machine head backward a -nd make sure the arrow (timing mark put on the timing belt is i -n line with the line on the bos -s of hook shaft bearing.
(3) If the timing mark is not in lin -e with the line on the boss, re -move the timing belt and instal -l it again to adjust

CAUTION THE SWITCH OFF THE POWER SUPPLY TO PREVENT FROM UNE -XPECTED INJURY. BE SURE TO CONFIRM THE STOP OF ROTATION OF THE MOTOR BEFORE OPERATIONS.

(1) Turn the handwheel by hand and stop, when the opener holder is located most remotely from the throat plate.
(2) Make sure gap between the inner hook (A) and the opener is approximately () 2mm.
(3) If the gap is too large or small, loos -en the opener set screw (B) and adjust position of the opener.

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19. RELATIONSHIP BETWEEN NEEDLE MOTION AND

FEED DOG MOTION

CAUTION THE SWITCH OFF THE POWER SUPPLY TO PREVENT FROM UNE -XPECTED INJURY. BE SURE TO CONFIRM THE STOP OF ROTATION OF THE MOTOR BEFORE OPERATIONS.

The feed dog should be adjusted so th -at the needle can plunge into the fe -ed dog needle hole at the center of the hole.

(1)Set stitch length to "O" on the stitch length setting dial.
(2) Lean the machine head backward.
(3) Loosen the feed shaft crank set screw(A) and (B).
(4) Set the needle at the lowest pos -ition.
(5) Adjust the distance between the preessure bar and the needle bar to be 9 mm and tentatively tight —en the screws (A) and (B) of the fe —ed shaft crank.
(6) Set stitch length to "9" on the stitch length setting dial. Turn the handwheel toward. Match the hinge screw ③ with the feed shaft crank ② in horizontally at most upper position.
- If the connection is not at righ -t position, remove the back cov -er, loosen the screw © and move the needle bar rocking rod ① in the arrow direction, and adjust.

(7) After the completion of adjustme -nt, fully tighten the screws (A), (B) and (C).

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20. DIFFERENTIAL FEED MOTION OF THE NEEDLE BAR FRAME

CAUTION THE SWITCH OFF THE POWER SUPPLY TO PREVENT FROM UNE -XPECTED INJURY. BE SURE TO CONFIRM THE STOP OF ROTATION OF THE MOTOR BEFORE OPERATIONS.

Loosen hinge screw ①. As you m -ove it in direction "A", the stroke of the needle bar frame is increased, and differential feed with respect to the feed d -og is provided As you move it in direction "B", the storoke i -s decreased.

Precaution

Be sure to make this adjustment within the needle hole in the f -eed dog.)

RE-ENGAGE SAFETY CLUTCH MECHANISM BR SUPPLY TO PREVENT FROM UNE CONFIRM THE STOP OF ROTATION TURN THE CAUTION I ONS HRM ) Remove any foreign matter whic -h may have lodged in hook. Do not use any sharp-edged too -1s 2) Pressing button ① and turn han --d wheel rearward slowly to re -engage safety clutch.

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22. ADJUSTING THE WALKING FOOT

☆ Alternate vertical motions of the walking foot and th -e presser foot

1) The alternate vertical stroke of the walking foot and the presser foot are normally equal
2) Depending on the type of material how -ever, the vertical stroke of the pre -sser foot and walking foot should be changed .
3) For instance when sewing slippery ma -terial or sewing many overlapping se -ction, a better result may be obtain -ed by adjusting the vertical stroke of the walking foot larger than that of the presser foot.
- 1 Turn the handwheel by hand until the thread take-up reaches its lowest po _int
- 7 Lower hand lifter (D.
- 3 Loosen screw (2)
- 4 As you move top feed crank (3) to the As you move top feed crank (g) to the left (in direction A), the vertical s -troke of the presser foot decreases "D" whereas the vertical stroke of the walking foot increases "E"
- 5 On the contrary as you move the top feed crank to the right (in direction B), the vertical stroke of the walk -ing foot becomes closer "C" to that of the presser foot when the walking foot sole in contact with the throat plate surface
- 6 After adjustment securely tighten SCROW (D)

A Weight of the welking foot and the presser foot

1) When sewing elastic material or overl -apping sections, a better result may be obtained by changing the height of the presser foot and walking foot
- 1 Loosen hinge screw ①
- 2 When you move the cam not boss towar A "A" within the slot the height i
- 3 When you move it toward "B" the hei -ght is decreased
- After adjustment securely tighten hinge screw f

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2 Gap between movable knife and inner hook stopper

(1) Turn the handwheel by hand until nee —dle reaches the lowest position.
(2)With the needle at the lowest positi -on, depress cam follower crank, tur -n the handwheel until the movable k -nife reaches the extremity of its s -troke.
(3) Manually rotate the inner hook in th -e direction indicated by arrow in f -igure and adjust gap between the mo -vable knife and the inner hook stop -per to about (1 2 mm (the screws (A) and (B) should be loosened for this ad -iustment)

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ADJUSTMENT FOR CHANGE OF NEEDLE GAUGE (FOR 4412A/566A)

CAUTTON ROTATIO 01 101

(1) Replace the throat plate, feed dog and needle clamp.

(Since the throat plate and feed dog are special parts designed for thread trimming machine, be sure to use those specified by us.) (2) Lean the machine head backward. (3) Loosen two connecting link clamp bolts (J).
(4) Remove the spring (M). (5) Loosen the hook bracket clamp screws (A) and (B) and adjust gap between each needle and hook
(6) When the needles and hooks have been adjusted, install the spring Φ. (7) Contact the rocking cranks © and D to the stopper pins B and P and tighten the conn -ecting link clamp bolt (J
(8) Turn the handwheel by hand until the needles reach the lowest position.
(9) Loosen the nut (G) and (H).
(10) Depress the cam follower crank (R) and adjust the connecting rod (L) so that the cam r -oller can smoothly enter the groove of thread trimmer cam. Then tighten the nut and M
(11) Adjustment of the cam groove and the cam roller.
- (a) Push the cam follower crank (R) so that the cam roller enters into the cam groove (b) Turn the connecting rod (1) and adjust the clearance between the cam roller and t -he cam groove surface (N as small as possible, and tighten the nuts (G and H). (c) Push the cam follower crank (K) again and check that the cam roller enters into
- the thread trimmer cam groove smoothly.

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28. TROUBLE AND CORRECTIVE MEASURES

Trauble	Comos	O maaatima maaannaa
Trouble	Cauae	Corrective measures
1. Thread breakage	(1) The thread path, needle point, hoo	O Remove the scratches on the hook
(Thread frays or	-k point or bobbin case positioning	point using a fine sand paper. Buff
wears out)	finger has scratches	the bobbin case positioning finger
	The needle thread tension is too	O Despering adjust the pool is thread
	Ine needle thread tension is too	O Property august the needle thread
	high.	tension
	(3) The needle hits the hook point.	O See' 15 NEEDLE TO HOOK RELATIONSHIP'.
	@ Lubrication to hook is inadequate	O Properly adjust the lubrication
	Dubi to noon to indequate
		See 2 REPUELING ADJUSIMENT OF THE HUCK .
Needle thread	(5) The needle thread tension is too	O Properly adjust the needle thread
remains2 to 3 cm	low	tension.
on the wrong side	B The thread take-up spring has an	O Decrease the tension and increase
of the cloth)	awaacciwaly high tancian while it	the strake
or the cloth)	excessively high tension while it	the Stroke.
	has an excessively small stroke.	10 No.
	① The timing between the needle and	O See' 15 NEEDLE TO HOOK RELATIONSHIP'.
	hook is too early or late.
2 Stitch skipping	() The clearance between the needle	O See' 15 NEEDLE TO HOOK DELATIONSHID!
2 Otton on opping	hack point and the is the large	O See 13 NEEDLE TO TROK RELATIONCHIT .
	nook point and the is too large.
	(2) The timing between the needle and	O See' 15 NEEDLE TO HOOK RELATIONSHIP'.
	hook is too early or late.
	3) The presser foot pressure is too	O Increase the presser foot pressure

	The electronic between the target	O Good IF NEEDER TO LOOK DE ANTONIO
	the clearance between the top edge	O See 15 NEEDLE TO HOOK RELATIONSHIP".
	of the needle eyelet and the hook
	point is not correct.
	The size of the needle is wrong	O Replace the needle by one
	A cunthatic fiber thread ar this	which one grade thicker
	O A synthetic liber thread of thin	which one grade thicker.
	thread is used.	O Wind the thread round the the
		needle as illustrated.
3 Loose stitches	() The thread has not been the passed	O Properly thread the bobbin case
	the through notch of the holding
	the through notion of the bobbin ca
	-se tension spring.
	2 The thread path is poorly finished	O Grind it using a fine sand paper
		of a buff
	The hobbin dose not rotate smooth	O Penlace the babbin or book
		O Replace the bobbin of hook.
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	④ The bobbin thread tension is too	O Properly adjust the tension.
	low.
	6 The bobbin thread has been wound	O Decrease the bobbin thread winding
	too tight	tension
	too tight.	tension.
4 The thread slip	(① The tension of the auxiliary threa	O Decrease the tension.
-s off the need	-d tension controller is too high
-le up on being	On The thread trimming timing is too	O See 25 AD TUSTMENT OF THREAD TENSION
trimmed	of the thread trimming timing is too	PECIII ATOP*
t i innied	early.	INSOLATOR .
h .		See 24 ADJUSIMENT OF THREAD
		TRIMMER CAM".
1	The returning force of the thread	Adjust the high of the thread
	taka_un enring is tas high	take up and an and an or the through
	rave-ub shills is 100 ulbu	take-up spring.

15 The needle thre	① The last stitch has been skipped	O See 15 NEEDLE TO HOOK RELATIONSHIP.
-ad cannot be tr	(The clearance between the needle
-immed while the	and the hook is too large )
habbin theast	and the noon is too large, j
bobbin infead
can be trimmed
6 Both needle and	① The thread trimming timing is wro	O See 24 ADJUSTMENT OF THREAD
bobbin threads	-ng	TRIMMER CAM
cannot be trimm	O The knife has been demaged	O Replace the knife
	The haife another is in the	O Inoronoo the krife measure
-ea	Ine knile pressure is inadequate	O increase the knile pressure.
	(4) The home position of the movable	O See 24 ADJUSTMENT OF THREAD
	knife is inaccurate	TRIMMER CAM".
1	B The movable knife fails to work	O Check it by actuating it by hand
	The thread taiming a lag if faile	O Check the mater calenaid for prope
	the thread trimming solenoid fails	-r energy the motor solenoid for prope
	to work.	-r operation.
7. Thread cannot	① The thread trimming timing is wro	O See 24 ADJUSTMENT OF THREAD
be trimmed	-ng	TRIMMER CAM
sharply	The knife pressure is indecusts	O Increase the knife pressure
Sharpiy	wine kuite pressure is inadequate	O Parlease the knile pressure.
	G The Knile blade is blunt.	O Replace the knile.

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